Question

Gaseous ethane CH3CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. If 1.68g of water is produced from the reaction of 1.2g of ethane and 8.9g of oxygen gas, calculate the percent yield of water. Round your answer to 2 significant figures.

Answer 1

lon Ans: Given no cu YASS we 13 os LO Mass produced of water a 12689 since, Molar mass of water (Ago) = 18 gloro Mass of ethane larg Since, Molar mass of CH3 CH3 2 300 g/mol actual ginen equation, CH₃ CH3 tog - cogthao 190 (9) o (9) Now, Balanced equation - CH₃ CH3 +702 - 2002 + 3H2O s moles of cu.ch - Marss of CH₃ CH3 - Molar mass of CH₃ CH₃ 1.29 30. 19lmol 20.04 mol - Mass of op gas = 8,9 g - Molar mass of a = 32 g/mol Moles of Og = 8.99 32-91mol = 0.278 mo? 11 Ics Scanned with CamScanner